Your testicles either "shrivel up" or hang low depending on the temperature of your body. With more heat they sink down, with less heat they constrict.
Your penis and testicles are only connected by a very small tube. You can still have an erection if you are missing one or both of your testicles if that is what you are asking
As long as the nerves from the penis to the spinal column are there and undamaged then yes they can. The spinal column can be severed half way to the brain and they should still be able to get one. However, they may need some hormonal help.
In Twilight, Edward has to be careful not to see the light, if he does he will start to shrivel away, that's why they only come out at night.
If what you mean is your testicles turning blue, then no. The discomfort known as "blue balls" is, however, real. It is caused by having an erection for an extended amount of time and not ejaculating before your erection is gone. And if you haven't caught this yet, only males can get "blue balls".
Caponization is the surgical removal of the male testicles or the hormonal remission of the testicles using an estrogen implant. So the answer is, yes, only male chickens are caponized.
No, only your testicles.
Only male rats have testicles.
Males that have not been castrated only have testicles.
No. Only two testicles.
An interesting fact that I would like to know is why August has the largest percentage of births.
First, only males have testicles, but they are suspended , in a sac of skin (Scrotum), between the legs (more specifically between the penis and the anus).
Of course! The size of his testicles have nothing to do with it. The only thing that can affect his fertility is the condition of his sperm. a lot of swimmers, active swimmers.